<settings>
  <property name="Setting1">
    <environment name="Default">setting1default</environment>
  </property>
  <property name="Setting2">
    <environment name="Default">setting2default</environment>
  </property>
  <property name="Setting3">
    <environment name="Default">setting3default</environment>
  </property>
  <property name="Setting4">
    <environment name="Default">setting4default</environment>
    <environment name="Local">localhost</environment>
    <environment name="Test">testserver</environment>
    <environment name="Integration">intgserver</environment>
    <environment name="Production">prodserver</environment>
  </property>
  <property name="Setting5">
    <environment name="Default">setting4default</environment>
    <environment name="Local">${Setting1}</environment>
    <environment name="Test">${Setting1}</environment>
    <environment name="Integration">${Setting1}</environment>
    <environment name="Production">${Setting1}</environment>
  </property>  
</settings>